2002 Alfa Romeo 156 vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2002 Alfa Romeo 156 would be higher. Both 2002 Alfa Romeo 156 and 2005 Opel Vectra are equipped with a 1,910 cc engine. In terms of performance, 2005 Opel Vectra (148 HP @ 4000 RPM) has 35 more horse power than 2002 Alfa Romeo 156. (113 HP @ 4000 RPM) In normal driving conditions, 2005 Opel Vectra should accelerate faster than 2002 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2002 Alfa Romeo 156 weights approximately 80 kg more than 2005 Opel Vectra.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Opel Vectra (321 Nm @ 2000 RPM) has 46 more torque (in Nm) than 2002 Alfa Romeo 156. (275 Nm @ 2000 RPM). This means 2005 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2002 Alfa Romeo 156.
Compare all specifications:
| 2002 Alfa Romeo 156 | 2005 Opel Vectra | |
| Make | Alfa Romeo | Opel |
| Model | 156 | Vectra |
| Year Released | 2002 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1910 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 148 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 275 Nm | 321 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Compression Ratio | 18.5:1 | 18.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 191 km/hour | 207 km/hour |
| Acceleration 0-100mph | 10.7 seconds | 10.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1290 kg | 1210 kg |
| Vehicle Length | 4440 mm | 4830 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1510 mm |
| Wheelbase Size | 2600 mm | 2710 mm |
| Fuel Tank Capacity | 63 L | 60 L |
